maintenance/updateSpecialPages.php

   1 <?php
   2 /**
   3  * Update for cached special pages.
   4  * Run this script periodically if you have miser mode enabled.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  * http://www.gnu.org/copyleft/gpl.html
  20  *
  21  * @file
  22  * @ingroup Maintenance
  23  */
  24
  25 require_once __DIR__ . '/Maintenance.php';
  26
  27 /**
  28  * Maintenance script to update cached special pages.
  29  *
  30  * @ingroup Maintenance
  31  */
  32 class UpdateSpecialPages extends Maintenance {
  33         public function __construct() {
  34                 parent::__construct();
  35                 $this->addOption( 'list', 'List special page names' );
  36                 $this->addOption( 'only', 'Only update "page"; case sensitive, ' .
  37                         'check correct case by calling this script with --list or on ' .
  38                         'includes/QueryPage.php. Ex: --only=BrokenRedirects', false, true );
  39                 $this->addOption( 'override', 'Also update pages that have updates disabled' );
  40         }
  41
  42         public function execute() {
  43                 global $IP, $wgQueryPages, $wgQueryCacheLimit, $wgDisableQueryPageUpdate;
  44
  45                 $dbw = wfGetDB( DB_MASTER );
  46
  47                 $this->doSpecialPageCacheUpdates( $dbw );
  48
  49                 // This is needed to initialise $wgQueryPages
  50                 require_once "$IP/includes/QueryPage.php";
  51
  52                 foreach ( $wgQueryPages as $page ) {
  53                         list( $class, $special ) = $page;
  54                         $limit = isset( $page[2] ) ? $page[2] : null;
  55
  56                         # --list : just show the name of pages
  57                         if ( $this->hasOption( 'list' ) ) {
  58                                 $this->output( "$special [QueryPage]\n" );
  59                                 continue;
  60                         }
  61
  62                         if ( !$this->hasOption( 'override' )
  63                                 && $wgDisableQueryPageUpdate && in_array( $special, $wgDisableQueryPageUpdate ) )
  64                         {
  65                                 $this->output( sprintf( "%-30s [QueryPage] disabled\n", $special ) );
  66                                 continue;
  67                         }
  68
  69                         $specialObj = SpecialPageFactory::getPage( $special );
  70                         if ( !$specialObj ) {
  71                                 $this->output( "No such special page: $special\n" );
  72                                 exit;
  73                         }
  74                         if ( $specialObj instanceof QueryPage ) {
  75                                 $queryPage = $specialObj;
  76                         } else {
  77                                 if ( !class_exists( $class ) ) {
  78                                         $file = $specialObj->getFile();
  79                                         require_once $file;
  80                                 }
  81                                 $queryPage = new $class;
  82                         }
  83
  84                         if ( !$this->hasOption( 'only' ) || $this->getOption( 'only' ) == $queryPage->getName() ) {
  85                                 $this->output( sprintf( '%-30s [QueryPage] ', $special ) );
  86                                 if ( $queryPage->isExpensive() ) {
  87                                         $t1 = explode( ' ', microtime() );
  88                                         # Do the query
  89                                         $num = $queryPage->recache( $limit === null ? $wgQueryCacheLimit : $limit );
  90                                         $t2 = explode( ' ', microtime() );
  91                                         if ( $num === false ) {
  92                                                 $this->output( "FAILED: database error\n" );
  93                                         } else {
  94                                                 $this->output( "got $num rows in " );
  95
  96                                                 $elapsed = ( $t2[0] - $t1[0] ) + ( $t2[1] - $t1[1] );
  97                                                 $hours = intval( $elapsed / 3600 );
  98                                                 $minutes = intval( $elapsed % 3600 / 60 );
  99                                                 $seconds = $elapsed - $hours * 3600 - $minutes * 60;
 100                                                 if ( $hours ) {
 101                                                         $this->output( $hours . 'h ' );
 102                                                 }
 103                                                 if ( $minutes ) {
 104                                                         $this->output( $minutes . 'm ' );
 105                                                 }
 106                                                 $this->output( sprintf( "%.2fs\n", $seconds ) );
 107                                         }
 108                                         # Reopen any connections that have closed
 109                                         if ( !wfGetLB()->pingAll() ) {
 110                                                 $this->output( "\n" );
 111                                                 do {
 112                                                         $this->error( "Connection failed, reconnecting in 10 seconds..." );
 113                                                         sleep( 10 );
 114                                                 } while ( !wfGetLB()->pingAll() );
 115                                                 $this->output( "Reconnected\n\n" );
 116                                         }
 117                                         # Wait for the slave to catch up
 118                                         wfWaitForSlaves();
 119                                 } else {
 120                                         $this->output( "cheap, skipped\n" );
 121                                 }
 122                                 if ( $this->hasOption( 'only' ) ) {
 123                                         break;
 124                                 }
 125                         }
 126                 }
 127         }
 128
 129         public function doSpecialPageCacheUpdates( $dbw ) {
 130                 global $wgSpecialPageCacheUpdates;
 131
 132                 foreach ( $wgSpecialPageCacheUpdates as $special => $call ) {
 133                         # --list : just show the name of pages
 134                         if ( $this->hasOption( 'list' ) ) {
 135                                 $this->output( "$special [callback]\n" );
 136                                 continue;
 137                         }
 138
 139                         if ( !$this->hasOption( 'only' ) || $this->getOption( 'only' ) == $special ) {
 140                                 if ( !is_callable( $call ) ) {
 141                                         $this->error( "Uncallable function $call!" );
 142                                         continue;
 143                                 }
 144                                 $this->output( sprintf( '%-30s [callback] ', $special ) );
 145                                 $t1 = explode( ' ', microtime() );
 146                                 call_user_func( $call, $dbw );
 147                                 $t2 = explode( ' ', microtime() );
 148
 149                                 $this->output( "completed in " );
 150                                 $elapsed = ( $t2[0] - $t1[0] ) + ( $t2[1] - $t1[1] );
 151                                 $hours = intval( $elapsed / 3600 );
 152                                 $minutes = intval( $elapsed % 3600 / 60 );
 153                                 $seconds = $elapsed - $hours * 3600 - $minutes * 60;
 154                                 if ( $hours ) {
 155                                         $this->output( $hours . 'h ' );
 156                                 }
 157                                 if ( $minutes ) {
 158                                         $this->output( $minutes . 'm ' );
 159                                 }
 160                                 $this->output( sprintf( "%.2fs\n", $seconds ) );
 161                                 # Wait for the slave to catch up
 162                                 wfWaitForSlaves();
 163                         }
 164                 }
 165         }
 166 }
 167
 168 $maintClass = "UpdateSpecialPages";
 169 require_once RUN_MAINTENANCE_IF_MAIN;